OTTAWA -- Chaos erupted at the U.S. Capitol on Wednesday as hundreds of Trump supporters stormed the building in a bid to halt the certification of U.S. President-elect Joe Biden’s Electoral College victory.

The rioters smashed through windows and entered the building, with chants of “Stop the Steal,” while waving pro-Trump flags and “Make America Great Again” merchandise.

Once inside, the rioters stormed the U.S. Senate chambers, prompting an evacuation and a lockdown of the building.

Photos and video from the chaotic scene show police clashing with the Trump supporters as things turned violent.

A protester screams "Freedom"

A rioter screams "Freedom" inside the Senate chamber after the U.S. Capitol was breached by a mob during a joint session of Congress on January 06, 2021 in Washington, DC. (Photo by Win McNamee/Getty Images)

A protester is seen hanging

A rioter is seen hanging from the balcony in the Senate Chamber on January 06, 2021 in Washington, DC. (Photo by Win McNamee/Getty Images)

U.S. Capitol Police with guns drawn

U.S. Capitol Police with guns drawn watch as rioters try to break into the House Chamber at the U.S. Capitol on Wednesday, Jan. 6, 2021, in Washington. (AP Photo/J. Scott Applewhite)

Trump supporters

Trump supporters gather outside the Capitol, Wednesday, Jan. 6, 2021, in Washington. (AP Photo/Jose Luis Magana)

Supporters of President Donald Trump

Supporters of U.S. President Donald Trump climb the West wall of the the U.S. Capitol on Wednesday, Jan. 6, 2021, in Washington. (AP Photo/Jose Luis Magana)

People shelter

People shelter in the House gallery as rioters try to break into the House Chamber at the U.S. Capitol on Wednesday, Jan. 6, 2021, in Washington. (AP Photo/Andrew Harnik)

A man dressed as George Washington

A man dressed as George Washington kneels and prays near the Washington Monument with a Trump flag on Wednesday, Jan. 6, 2021, in Washington. (AP Photo/Carolyn Kaster)

U.S. Capitol Police

U.S. Capitol Police hold rioters at gun-point near the House Chamber inside the U.S. Capitol on Wednesday, Jan. 6, 2021, in Washington. (AP Photo/Andrew Harnik)

Trump supporters

Trump supporters try to break through a police barrier, Wednesday, Jan. 6, 2021, at the Capitol in Washington. (AP Photo/Julio Cortez)

Rioters break TV equipment

Rioters break TV equipment outside the the U.S. Capitol on Wednesday, Jan. 6, 2021, in Washington, during a chaotic protest aimed at thwarting a peaceful transfer of power. (AP Photo/Jose Luis Magana)

Supporters of U.S. President Donald Trump

Supporters of U.S. President Donald Trump are confronted by U.S. Capitol Police officers outside the Capitol, Wednesday, Jan. 6, 2021 in Washington. (AP Photo/Manuel Balce Ceneta)

Violent rioters

Violent rioters, loyal to U.S. President Donald Trump, storm the Capitol, Wednesday, Jan. 6, 2021, in Washington. (AP Photo/John Minchillo)